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Sticker of Ant woodlouse
Bug card No. 0039 of 1,500

Ant woodlouse

Platyarthrus hoffmannseggii
Eats: Leftovers and dead thingsWoodliceGardens and meadows14 legsNot an insect, but a bug cousin

The ant woodlouse is a tiny white woodlouse that lives inside ant nests. It is oval, with short feelers, and it is blind. In the total darkness of an ant hill, it does not need eyes at all.

Fun fact: woodlice are not insects. They are crustaceans, cousins of crabs and shrimps, that live on land.
Lives in
Europe, North Africa and Turkey, inside ant nests. It was also brought to Australia and North America
Length
4 to 5 mm (0.16 to 0.2 in)
Top speed
about 0.1 km/h (0.06 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It is a tiny, gentle cleaner.
What does it eat?
It eats ant droppings and mould inside the ant nest.
For real!Photo of Ant woodlouse
Picture by Andy Murray. CC BY-SA 2.0, via Wikimedia Commons.

How big is it?

How long is it?

Ant woodlouse about 5 mm long (0.2 in)A grain of rice about 6 mm (0.24 in)
small enough to sit on your fingernailit has about 14 legscould run across a dinner table in 36 seconds

How big is Ant woodlouse compared to YOU?

Just maths in your browser. Nothing is saved or sent anywhere.

How fast is it?

cool stuff

Fun facts

1

It lives together with ants, mostly yellow meadow ants, black garden ants and red ants.

2

It goes wherever its ants go, so it lives in the same places as they do.

3

It is only about 4 to 5 millimetres long.

4

Britain and Ireland are the farthest northwest it lives.

you asked

Most asked questions about Ant woodlouse

?Where does the ant woodlouse live?

Inside ant nests, in Europe, North Africa and Turkey.

?What does the ant woodlouse eat?

Ant droppings and mould inside the nest.

?Why is the ant woodlouse white?

It lives in the dark inside ant hills, where it does not need colour or eyes.

For bug experts

Scientific name
Platyarthrus hoffmannseggii
Group
Woodlice
Family
Platyarthridae
Classification
Malacostraca > Isopoda > Platyarthridae
Lives on
Europe, Africa, Asia, Australia and Oceania, North America

Where the facts come from

  1. Platyarthrus hoffmannseggii (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
  2. Picture by Andy Murray. CC BY-SA 2.0, Wikimedia Commons. The round sticker of this bug is cut from the same picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at [email protected] and we will fix it.

More from the same group: Woodlice

Also at home here: Gardens and meadows